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Finding the Fourth Proportional to 125,696.45, 173,464.52 and 68,339.63

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Solution

The fourth proportional to 125,696.45, 173,464.52 and 68,339.63 is: 94,310.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,696.45 : 173,464.52 = 68,339.63 : x
  2. Step 2: Convert to fraction form
    125,696.45/173,464.52 = 68,339.63/x
  3. Step 3: Cross multiply
    125,696.45x = 173,464.52 × 68,339.63
  4. Step 4: Simplify right side
    125,696.45x = 11,854,499,905.91
  5. Step 5: Solve for x
    x = 11,854,499,905.91/125,696.45
  6. Step 6: Final answer
    x = 94,310.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.